<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box{
            position: relative;
			width: 200px;
			height: 299px;
			border:1px solid #000;
            margin: 120px auto;
            /* 设置左边边框的宽度和盒子的宽度相同 */
            border-left-width: 200px;
            border-radius: 50%;
            /* 过度效果 */
            transition: 100s;
            /* box-shadow: 5px 5px 5px 5px; */
        }
        .box:hover{
            /*旋转角度 */
            transform: rotate(36000deg);
        }
        .box::before{
			content: "";
			position: absolute;
            top: 0;
            /* 边框的像素加上正方形自身的一半 */
            left: -75px;
            /* right: 100px; */
            /* 设置正方形宽高 */
			width: 30px;
			height: 30px;
            border: 60px solid #000000;
            border-radius:50% ;
            background-color: #fff;

        }
        .box::after{
            content: '';
            position: absolute;
            top: 150px;
            left: -75px;
            width: 30px;
            height: 30px;
            border:60px solid #fff ;
            border-radius: 50%;
            background-color: #000;
        }
    </style>
</head>
<body>
    <div class="box"></div>
</body>
</html>